text: /*-
   * Copyright (c) 1999-2002 Robert N. M. Watson
   * Copyright (c) 2001-2005 Networks Associates Technology, Inc.
   * Copyright (c) 2005-2006 SPARTA, Inc.
   * All rights reserved.
   *
   * This software was developed by Robert Watson for the TrustedBSD Project.
   *
   * This software was developed for the FreeBSD Project in part by Network
   * Associates Laboratories, the Security Research Division of Network
   * Associates, Inc. under DARPA/SPAWAR contract N66001-01-C-8035 ("CBOSS"),
   * as part of the DARPA CHATS research program.
   *
   * This software was enhanced by SPARTA ISSO under SPAWAR contract
   * N66001-04-C-6019 ("SEFOS").
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in the
   *    documentation and/or other materials provided with the distribution.
   *
   * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   * SUCH DAMAGE.
   *
   * $FreeBSD: releng/11.0/sys/sys/mac.h 166537 2007-02-06 16:24:57Z rwatson $
   */
  /*
   * Userland interface for Mandatory Access Control.  Loosely based on the
   * POSIX.1e API.  More information may be found at:
   *
   * http://www.TrustedBSD.org/
   */
  
  #ifndef _SYS_MAC_H_
  #define	_SYS_MAC_H_
  
  #ifndef _POSIX_MAC
  #define	_POSIX_MAC
  #endif
  
  /*
   * MAC framework-related constants and limits.
   */
  #define	MAC_MAX_POLICY_NAME		32
  #define	MAC_MAX_LABEL_ELEMENT_NAME	32
  #define	MAC_MAX_LABEL_ELEMENT_DATA	4096
  #define	MAC_MAX_LABEL_BUF_LEN		8192
  
  /*
   * struct mac is the data structure used to carry MAC labels in system calls
   * and ioctls between userspace and the kernel.
   */
  struct mac {
  	size_t		 m_buflen;
  	char		*m_string;
  };
  
  typedef struct mac	*mac_t;
  
  #ifndef _KERNEL
  
  /*
   * Location of the userland MAC framework configuration file.  mac.conf
   * set defaults for MAC-aware applications.
   */
  #define	MAC_CONFFILE	"/etc/mac.conf"
  
  /*
   * Extended non-POSIX.1e interfaces that offer additional services available
   * from the userland and kernel MAC frameworks.
   */
  __BEGIN_DECLS
  int	 mac_execve(char *fname, char **argv, char **envv, mac_t _label);
  int	 mac_free(mac_t _label);
  int	 mac_from_text(mac_t *_label, const char *_text);
  int	 mac_get_fd(int _fd, mac_t _label);
  int	 mac_get_file(const char *_path, mac_t _label);
  int	 mac_get_link(const char *_path, mac_t _label);
  int	 mac_get_peer(int _fd, mac_t _label);
  int	 mac_get_pid(pid_t _pid, mac_t _label);
  int	 mac_get_proc(mac_t _label);
  int	 mac_is_present(const char *_policyname);
  int	 mac_prepare(mac_t *_label, const char *_elements);
  int	 mac_prepare_file_label(mac_t *_label);
  int	 mac_prepare_ifnet_label(mac_t *_label);
  int	 mac_prepare_process_label(mac_t *_label);
  int	 mac_prepare_type(mac_t *_label, const char *_type);
  int	 mac_set_fd(int _fildes, const mac_t _label);
  int	 mac_set_file(const char *_path, mac_t _label);
  int	 mac_set_link(const char *_path, mac_t _label);
  int	 mac_set_proc(const mac_t _label);
  int	 mac_syscall(const char *_policyname, int _call, void *_arg);
  int	 mac_to_text(mac_t mac, char **_text);
  __END_DECLS
  
  #endif /* !_KERNEL */
  
  #endif /* !_SYS_MAC_H_ */
  